U.S. shipments of residential gas storage water heaters for August 2011 decreased 8%, to 284,536 units, down from 308,646 units shipped in August 2010. Residential electric storage water heater shipments decreased 5% in August 2011, to 284,574 units, down from 299,048 units shipped in August 2010.
Many engineers tend to avoid or delegate the nitty gritty of a ground source heat pump system, from soil moisture effects to building system (im) balance. It's time for designers to get in the loop. Learn more about Grounded In Reality in the December issue. Other topics in the December issue include health care HVAC, Boilders, check out the Back2Basics, and more.